Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3]
  Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]"
  SELinux: shrink sizeof av_inhert selinux_class_perm and context
  CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]
  keys: fix sparse warning by adding __user annotation to cast
  smack: Add support for unlabeled network hosts and networks
  selinux: Deprecate and schedule the removal of the the compat_net functionality
  netlabel: Update kernel configuration API

4 files changed, 131 insertions, 19 deletions

diff --git a/include/linux/capability.h b/include/linux/capability.h
index e22f48c2a46..02bdb768d43 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -529,8 +529,21 @@ extern const kernel_cap_t __cap_init_eff_set;
  *
  * Note that this does not set PF_SUPERPRIV on the task.
  */
-#define has_capability(t, cap) (security_capable((t), (cap)) == 0)
-#define has_capability_noaudit(t, cap) (security_capable_noaudit((t), (cap)) == 0)
+#define has_capability(t, cap) (security_real_capable((t), (cap)) == 0)
+
+/**
+ * has_capability_noaudit - Determine if a task has a superior capability available (unaudited)
+ * @t: The task in question
+ * @cap: The capability to be tested for
+ *
+ * Return true if the specified task has the given superior capability
+ * currently in effect, false if not, but don't write an audit message for the
+ * check.
+ *
+ * Note that this does not set PF_SUPERPRIV on the task.
+ */
+#define has_capability_noaudit(t, cap) \
+        (security_real_capable_noaudit((t), (cap)) == 0)
 
 extern int capable(int cap);
 
diff --git a/include/linux/security.h b/include/linux/security.h
index b92b5e453f6..1f2ab6353c0 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -48,7 +48,8 @@ struct audit_krule;
  * These functions are in security/capability.c and are used
  * as the default capabilities functions
  */
-extern int cap_capable(struct task_struct *tsk, int cap, int audit);
+extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
+                       int cap, int audit);
 extern int cap_settime(struct timespec *ts, struct timezone *tz);
 extern int cap_ptrace_may_access(struct task_struct *child, unsigned int mode);
 extern int cap_ptrace_traceme(struct task_struct *parent);
@@ -1251,9 +1252,12 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @permitted contains the permitted capability set.
  *      Return 0 and update @new if permission is granted.
  * @capable:
- *      Check whether the @tsk process has the @cap capability.
+ *      Check whether the @tsk process has the @cap capability in the indicated
+ *      credentials.
  *      @tsk contains the task_struct for the process.
+ *      @cred contains the credentials to use.
  *      @cap contains the capability <include/linux/capability.h>.
+ *      @audit: Whether to write an audit message or not
  *      Return 0 if the capability is granted for @tsk.
  * @acct:
  *      Check permission before enabling or disabling process accounting.  If
@@ -1346,7 +1350,8 @@ struct security_operations {
                        const kernel_cap_t *effective,
                        const kernel_cap_t *inheritable,
                        const kernel_cap_t *permitted);
-        int (*capable) (struct task_struct *tsk, int cap, int audit);
+        int (*capable) (struct task_struct *tsk, const struct cred *cred,
+                        int cap, int audit);
         int (*acct) (struct file *file);
         int (*sysctl) (struct ctl_table *table, int op);
         int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
@@ -1628,8 +1633,9 @@ int security_capset(struct cred *new, const struct cred *old,
                     const kernel_cap_t *effective,
                     const kernel_cap_t *inheritable,
                     const kernel_cap_t *permitted);
-int security_capable(struct task_struct *tsk, int cap);
-int security_capable_noaudit(struct task_struct *tsk, int cap);
+int security_capable(int cap);
+int security_real_capable(struct task_struct *tsk, int cap);
+int security_real_capable_noaudit(struct task_struct *tsk, int cap);
 int security_acct(struct file *file);
 int security_sysctl(struct ctl_table *table, int op);
 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
@@ -1826,14 +1832,31 @@ static inline int security_capset(struct cred *new,
         return cap_capset(new, old, effective, inheritable, permitted);
 }
 
-static inline int security_capable(struct task_struct *tsk, int cap)
+static inline int security_capable(int cap)
 {
-        return cap_capable(tsk, cap, SECURITY_CAP_AUDIT);
+        return cap_capable(current, current_cred(), cap, SECURITY_CAP_AUDIT);
 }
 
-static inline int security_capable_noaudit(struct task_struct *tsk, int cap)
+static inline int security_real_capable(struct task_struct *tsk, int cap)
 {
-        return cap_capable(tsk, cap, SECURITY_CAP_NOAUDIT);
+        int ret;
+
+        rcu_read_lock();
+        ret = cap_capable(tsk, __task_cred(tsk), cap, SECURITY_CAP_AUDIT);
+        rcu_read_unlock();
+        return ret;
+}
+
+static inline
+int security_real_capable_noaudit(struct task_struct *tsk, int cap)
+{
+        int ret;
+
+        rcu_read_lock();
+        ret = cap_capable(tsk, __task_cred(tsk), cap,
+                               SECURITY_CAP_NOAUDIT);
+        rcu_read_unlock();
+        return ret;
 }
 
 static inline int security_acct(struct file *file)
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index 9909774eb99..bedc7f62e35 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -131,7 +131,8 @@ extern int cipso_v4_rbm_strictvalid;
  */
 
 #ifdef CONFIG_NETLABEL
-int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
+int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
+                     struct netlbl_audit *audit_info);
 void cipso_v4_doi_free(struct cipso_v4_doi *doi_def);
 int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info);
 struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
@@ -140,7 +141,8 @@ int cipso_v4_doi_walk(u32 *skip_cnt,
                      int (*callback) (struct cipso_v4_doi *doi_def, void *arg),
                      void *cb_arg);
 #else
-static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
+static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def,
+                                   struct netlbl_audit *audit_info)
 {
         return -ENOSYS;
 }
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index 17c442a4514..749011eedc0 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -33,6 +33,8 @@
 #include <linux/types.h>
 #include <linux/net.h>
 #include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/in6.h>
 #include <net/netlink.h>
 #include <asm/atomic.h>
 
@@ -353,13 +355,37 @@ static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
 /*
  * LSM configuration operations
  */
-int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info);
-int netlbl_cfg_unlbl_add_map(const char *domain,
+int netlbl_cfg_map_del(const char *domain,
+                       u16 family,
+                       const void *addr,
+                       const void *mask,
+                       struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_map_add(const char *domain,
+                             u16 family,
+                             const void *addr,
+                             const void *mask,
                              struct netlbl_audit *audit_info);
-int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
+int netlbl_cfg_unlbl_static_add(struct net *net,
+                                const char *dev_name,
+                                const void *addr,
+                                const void *mask,
+                                u16 family,
+                                u32 secid,
+                                struct netlbl_audit *audit_info);
+int netlbl_cfg_unlbl_static_del(struct net *net,
+                                const char *dev_name,
+                                const void *addr,
+                                const void *mask,
+                                u16 family,
+                                struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+                           struct netlbl_audit *audit_info);
+void netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
+int netlbl_cfg_cipsov4_map_add(u32 doi,
                                const char *domain,
+                               const struct in_addr *addr,
+                               const struct in_addr *mask,
                                struct netlbl_audit *audit_info);
-
 /*
  * LSM security attribute operations
  */
@@ -401,19 +427,62 @@ void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway);
 void netlbl_cache_invalidate(void);
 int netlbl_cache_add(const struct sk_buff *skb,
                      const struct netlbl_lsm_secattr *secattr);
+
+/*
+ * Protocol engine operations
+ */
+struct audit_buffer *netlbl_audit_start(int type,
+                                        struct netlbl_audit *audit_info);
 #else
 static inline int netlbl_cfg_map_del(const char *domain,
+                                     u16 family,
+                                     const void *addr,
+                                     const void *mask,
                                      struct netlbl_audit *audit_info)
 {
         return -ENOSYS;
 }
-static inline int netlbl_cfg_unlbl_add_map(const char *domain,
+static inline int netlbl_cfg_unlbl_map_add(const char *domain,
+                                           u16 family,
+                                           void *addr,
+                                           void *mask,
                                            struct netlbl_audit *audit_info)
 {
         return -ENOSYS;
 }
-static inline int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
+static inline int netlbl_cfg_unlbl_static_add(struct net *net,
+                                              const char *dev_name,
+                                              const void *addr,
+                                              const void *mask,
+                                              u16 family,
+                                              u32 secid,
+                                              struct netlbl_audit *audit_info)
+{
+        return -ENOSYS;
+}
+static inline int netlbl_cfg_unlbl_static_del(struct net *net,
+                                              const char *dev_name,
+                                              const void *addr,
+                                              const void *mask,
+                                              u16 family,
+                                              struct netlbl_audit *audit_info)
+{
+        return -ENOSYS;
+}
+static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
+                                         struct netlbl_audit *audit_info)
+{
+        return -ENOSYS;
+}
+static inline void netlbl_cfg_cipsov4_del(u32 doi,
+                                          struct netlbl_audit *audit_info)
+{
+        return;
+}
+static inline int netlbl_cfg_cipsov4_map_add(u32 doi,
                                              const char *domain,
+                                             const struct in_addr *addr,
+                                             const struct in_addr *mask,
                                              struct netlbl_audit *audit_info)
 {
         return -ENOSYS;
@@ -495,6 +564,11 @@ static inline int netlbl_cache_add(const struct sk_buff *skb,
 {
         return 0;
 }
+static inline struct audit_buffer *netlbl_audit_start(int type,
+                                                struct netlbl_audit *audit_info)
+{
+        return NULL;
+}
 #endif /* CONFIG_NETLABEL */
 
 #endif /* _NETLABEL_H */